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The ANSI support doesn't work properly with edlin, the issue can be noticed when you try to use the history of the shell and the prompt prefix has ANSI (https://github.com/elixir-lang/elixir/issues/6448). The problem is that when a `\e` character appears, it handles it like a new line, dropping the buffer before it.
The solution is to always add the `\e` to the buffer like a regular character and handle it when writing the buffer instead.
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* maint:
stdlib: Improve edlin handling of unicode chars
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* dgud/stdlib/edit-unicode:
stdlib: Improve edlin handling of unicode chars
OTP-14542
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Conflicts:
erts/emulator/beam/erl_nif.c
erts/emulator/beam/erl_process.c
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* lukas/erts/fix_dirty_trace_message_flush/OTP-14538:
erts: Must have main lock when flushing trace messages
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run_erl: Fix error handling in sf_close and during pty master read
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Let edlin handle grapheme clusters instead of codepoints to
improve the handling multi-codepoints characters.
The ttsl driver (and protocol) still expects all lengths as
codepoints.
Previously it was expected that each codepoint used (at least) one
terminal column for each codepoint, and a hack was made for wide
characters (multicolumn) by patching in TAGGED characters to occupy
the extra space so that codepoint index was equal column index.
This didn't work at all for combining codepoints that do not occupy any
more space than the previous character.
Improved this handling by calculating column positions in move_cursor.
This is based on wcwidth() and is not perfect, wcwidth() is wrong for
some codepoints and wcwidth() can not know with Hangul graphemes for
example. But it works better than before without making a major change
in the protocol.
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The instruction put_map_assoc/5 (used for updating a map) has a
failure operand, but it can't actually fail provided that its "map"
argument is a map.
The following code:
M#{key=>value}.
will be compiled to:
{test,is_map,{f,3},[{x,0}]}.
{line,[...]}.
{put_map_assoc,{f,0},{x,0},{x,0},1,{list,[{atom,key},{atom,value}]}}.
return.
{label,3}.
%% Code that produces a 'badmap' exception follows.
Because of the is_map instruction, {x,0} always contains a map when
the put_map_assoc instruction is executed. Therefore we can remove
the failure operand. That will save one word, and also eliminate
two tests at run-time.
The only problem is that the compiler in OTP 17 did not emit a
is_map instruction before the put_map_assoc instruction. Therefore,
we must add an instruction that tests for a map if the code was
compiled with the OTP 17 compiler.
Unfortunately, there is no safe and relatively easy way to known that
the OTP 17 compiler was used, so we will check whether a compiler
before OTP 20 was used. OTP 20 introduced a new chunk type for atoms,
which is trivial to check.
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Also, fix cleaning up the OS environment setting modified by this test
case to prevent problems with later test cases using the echo_drv too.
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* rickard/non-smp-removal-cleanup/OTP-14518:
erts: Cleanup erl and erlang docs after non-smp removal
erts: Remove unused prototypes after non-smp removal
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'0 bsl 134217728' would fail with a system limit exception on a 32-bit
BEAM machine, but not on a 64-bit BEAM machine. Smaller values
on the right would always work.
Make erlang:bsl(0, BigNumber) always return 0 to make for consistency.
(The previous commit accidentally did that change for
'0 bsl BigNumber'.)
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beam_makeops will place all micro instructions in a block and generate
goto instructions from one micro instruction to the next. It will also
add adjustments of 'I' if necessary (if the micro instructions have
different length).
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Eliminate the need to write pre-processor macros for each instruction.
Instead allow the implementation of instruction to be written in
C directly in the .tab files. Rewrite all existing macros in this
way and remove the %macro directive.
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This fixes the following bug:
A = <<0:((1 bsl 32)-8)>>,
B = <<2, 3>>.
B =:= <<A/binary,1,B/binary>>. %% Evaluated to true...
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* maint:
Updated OTP version
Update release notes
Update version numbers
Fix doc for the 'quiet' option; it defaults to false
asn1: Fix missing quotes of external encoding call
Add a dedicated close function for TCP ports to prevent issues like ERL-430/448
Close TCP ports properly on send timeout
erts: Add missing release note
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* maint-20:
Updated OTP version
Update release notes
Update version numbers
Fix doc for the 'quiet' option; it defaults to false
asn1: Fix missing quotes of external encoding call
Add a dedicated close function for TCP ports to prevent issues like ERL-430/448
Close TCP ports properly on send timeout
erts: Add missing release note
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* sverker/big-bxor-bug/ERL-450/OTP-14514:
erts: Fix bug in bxor of a big negative number
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* john/erts/fix-tcp-send-timeout/OTP-14509/ERL-448:
Add a dedicated close function for TCP ports to prevent issues like ERL-430/448
Close TCP ports properly on send timeout
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* sverker/enif_whereis-bug:
erts: Fix bug in enif_whereis_pid/port
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This refactor was done using the unifdef tool like this:
for file in $(find erts/ -name *.[ch]); do unifdef -t -f defile -o $file $file; done
where defile contained:
#define ERTS_SMP 1
#define USE_THREADS 1
#define DDLL_SMP 1
#define ERTS_HAVE_SMP_EMU 1
#define SMP 1
#define ERL_BITS_REENTRANT 1
#define ERTS_USE_ASYNC_READY_Q 1
#define FDBLOCK 1
#undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
#define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 0
#define ERTS_POLL_USE_WAKEUP_PIPE 1
#define ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE 1
#undef ERTS_HAVE_PLAIN_EMU
#undef ERTS_SIGNAL_STATE
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* sverker/big-bxor-bug/ERL-450/OTP-14514:
erts: Fix bug in bxor of a big negative number
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Wrong result for
(X bsl WS) bxor Y.
where
X is any negative integer
Y is any integer that does not require more words than X
WS is erlang:system_info(wordsize) or larger
Fix: The subtraction of 1 (for 2-complement conversion)
must be carried along all the way to the last words.
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that could cause heap corruption if
whereis lookup conflicts with other register updater
AND other thread sends on-heap message while main lock is released.
Also improved enif_whereis from dirty nifs by passing c_p as NULL.
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CFLAGS weren't updated to include the sys/common directory for this build
target.
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erts: ensure alignment of VM core types
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Add stacktrace entries to BIF calls from emulator
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